Cocktail shaker



FIG. 1 is perspective view from slightly above the cocktail shaker of the present invention.

FIG. 2 is a side elevation view of the cocktail shaker of FIG. 1.

FIG. 3 is a top plan view of the cocktail shaker of FIG. 1; and,

FIG. 4 is a bottom plan view of the cocktail shaker of FIG. 1. 

The ornamental design for a cocktail shaker, as shown and described. 